[cdh-prodigy] Update Failing with Unmet Dependencies Error

[kayiwa]

We are encountering the following error while running our periodic update on cdh-prodigy1.princeton.edu and cdh-prodigy2.princeton.edu:

fatal: [cdh-prodigy1.princeton.edu]: FAILED! => {"changed": false, "msg": "'/usr/bin/apt-get dist-upgrade ' failed: E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).\n", "rc": 100, "stdout": "Reading package lists...\nBuilding dependency tree...\nReading state information...\nYou might want to run 'apt --fix-broken install' to correct these.\nThe following packages have unmet dependencies:\n python3.12-venv : Depends: python3.12 (= 3.12.8-1+jammy1) but 3.12.7-1+jammy1 is installed\n", "stdout_lines": ["Reading package lists...", "Building dependency tree...", "Reading state information...", "You might want to run 'apt --fix-broken install' to correct these.", "The following packages have unmet dependencies:", " python3.12-venv : Depends: python3.12 (= 3.12.8-1+jammy1) but 3.12.7-1+jammy1 is installed"]}

fatal: [cdh-prodigy2.princeton.edu]: FAILED! => {"changed": false, "msg": "'/usr/bin/apt-get dist-upgrade ' failed: E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).\n", "rc": 100, "stdout": "Reading package lists...\nBuilding dependency tree...\nReading state information...\nYou might want to run 'apt --fix-broken install' to correct these.\nThe following packages have unmet dependencies:\n python3.12-venv : Depends: python3.12 (= 3.12.8-1+jammy1) but 3.12.7-1+jammy1 is installed\n", "stdout_lines": ["Reading package lists...", "Building dependency tree...", "Reading state information...", "You might want to run 'apt --fix-broken install' to correct these.", "The following packages have unmet dependencies:", " python3.12-venv : Depends: python3.12 (= 3.12.8-1+jammy1) but 3.12.7-1+jammy1 is installed"]}

It appears that the python3.12-venv package requires python3.12 version 3.12.8-1+jammy1, but version 3.12.7-1+jammy1 is currently installed. This is causing a dependency conflict and preventing the dist-upgrade from completing successfully.

Steps to Investigate and Resolve:

1. Manual Investigation:

• SSH into cdh-prodigy1.princeton.edu and cdh-prodigy2.princeton.edu.
• Run apt --fix-broken install as suggested by the error message. This command will attempt to automatically resolve the dependency issues.
• If the issue persists, try manually installing the required version of python3.12:

sudo apt-get install python3.12=3.12.8-1+jammy1

• Check for any other potential dependency conflicts or errors.

2. Update Script Review:

Re-run the os_updates.yml playbook to ensure it is correctly handling dependencies and package upgrades.

[dphillips-39]

Actions Taken:
SSH'd into cdh-prodigy1.princeton.edu and cdh-prodigy2.princeton.edu.
Installed the required Python 3.12 version (confirmed installation of the required version).
Used sudo apt --fix-broken install to resolve the dependency issue and ensure the system was using the correct Python version (3.12.8-1+jammy1
Re-ran the playbook to apply necessary updates:
ansible-playbook playbooks/os_updates.yml -e runtime_env=cdh-prodigy1.princeton.edu.
Monitored the playbook run for errors and confirmed successful execution with no errors.

Post-Actions:
Verified system and package status after playbook execution to check that all updates applied successfully.
Ran final checks using sudo apt list --upgradable and sudo apt --fix-broken install to confirm there were no remaining issues